Perhaps you should try some spelling variations:
chang nang » chang wang, thong nang, chai nang
hanh sinh » hanh tinh, hanh dinh, hinh sinh
dung cong » dung trong
khi sang » khai sang, phi san, nha sang
sinh cua » manh cua, dinh cuu, sinh va
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
chat ban » nhat ban, chat ran, cua ban
chan nan » chan nhan, chan doan, chai nang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi sang - hanh sinh cua dung cong dan ((chat ban) or (((chan nan) or (chang nang))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi khi sang - hanh sinh cua dung cong dan ((chat ban) OR (((chan nan) OR (chang nang)))).
• Adding a wildcard symbol may retrieve word variants: doi khi sang - hanh sinh cua dung cong dan ((chat ban) or (((chan nan) or (chang nang))))*.